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Dynamical Magnetic and Nuclear Polarization in Complex Spin Systems: Semi-magnetic II-VI Quantum Dots
Dynamical Magnetic and Nuclear Polarization in Complex Spin Systems: Semi-magnetic II-VI Quantum Dots
2012/2/27
Dynamical magnetic and nuclear polarization in complex spin systems is discussed on the example of transfer of spin from exciton to the central spin of magnetic impurity in a quantum dot in the presen...
Effects of variable anisotropic-strain on the emission of neutral excitons confined in epitaxial quantum dots
Effects of variable anisotropic-strain neutral excitons epitaxial quantum dots
2010/11/22
We study the e ect of elastic anisotropic biaxial strain on the light emitted by neutral excitons confined in di erent kinds of semiconductor quantum dots (QDs). We find that the light polarization ro...
Two-spin dephasing by electron-phonon interaction in semiconductor double quantum dots
Two-spin dephasing electron-phonon interaction semiconductor double quantum dots
2010/11/11
We study electron-phonon interaction induced decoherence between two-electron singlet and triplet states in a semiconductor double quantum dot using a spin-boson model. We investigate the onset and ti...
Transport Properties of Strongly Correlated Electrons in Quantum Dots Using a Simple Circuit Model
Kondo effect Nanoscopic systems Correlated electrons
2010/8/26
Numerical calculations are shown to reproduce the main results of recent experiments involving nonlocal spin control in nanostructures (N. J. Craig et al., Science 304, 565 (2004)). In particular, the...
DC Electric Field Effects on the Electron Dynamics in Double Rectangular Quantum Dots
Coupled quantum dots DC bias Coherence Relaxation
2010/9/25
The effect of a dc electric field on the temporal evolution of an electron in a double rectangular quantum dot is explored in this work. In the framework of the effective mass approximation, first-ord...
Electron Spin-Phonon Relaxation in Quantum Dots
Electron Spin-Phonon Relaxation Quantum Dots
2010/10/22
We calculate the spin relaxation rates in parabolic quantum dots due to the phonon modulation of the spin-orbit interaction in presence of an external magnetic field. Both, deformation potential (DP) ...